At approximately 13:30 mountain time, a Cessna 210C lost engine power shortly after takeoff from Boulder Municipal Airport. The pilot was not injured. The pilot was climbing through 400 to 500 feet agl when the engine quit. The airplane bounced on a field and came to rest inverted in a hedgerow. The airplane had been dormant for about four years and FAA had issued a ferry permit to Englewood, Colo., for an annual inspection.